| 基于日降雨信息的月降雨侵蚀力模型 |
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| 引用本文： | 杨轩,梁音,方继青,潘贤章,穆欢,王宝良.基于日降雨信息的月降雨侵蚀力模型[J].土壤学报,2010,47(2):216-222. |
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| 作者姓名： | 杨轩 梁音 方继青 潘贤章 穆欢 王宝良 |
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| 作者单位： | 1. 中国科学院南京土壤研究所,南京,210008
2. 浙江省兰溪市水土保持监督站,浙江兰溪,321100 |
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| 基金项目： | 国家自然科学基金项目（40971163）、国家重点基础研究发展计划项目“中国主要水蚀区土壤侵蚀过程与调控研究”(2007CB407206)、中国科学院知识创新工程前沿项目“南方红壤区数字小流域的建立与侵蚀定量研究”(ISSASIP0602)资助 |
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| 摘 要： | 在分析浙江省兰溪和嵊州8年共402次自记降雨过程资料的基础上,提出了月侵蚀性雨量(Pmer)、月侵蚀性降雨日数(Dmer)和月内最大3日雨量(Z3m)等3个指标,同时定义了Pmer、Dmer和Z3m的计算方法,并将其引入到降雨侵蚀力模型之中。结果发现:利用Pmer、Dmer和Z3m等指标所建立的月降雨侵蚀力模型,其相对偏差为9·9%,而传统单因子雨量指标所建立的模型,其相对误差为21·6%,显然,前者优于后者。
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| 关 键 词： | 降雨侵蚀力(R) 日雨量 侵蚀性降雨 降雨侵蚀力模型 浙江省 |
Constitution of monthly rainfall erosivity models based on information of daily rainfall |
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| Yang Xuan,Liang Yin,Fang Jiqing,Pan Xianzhang,Mu Huan and Wang Baoliang.Constitution of monthly rainfall erosivity models based on information of daily rainfall[J].Acta Pedologica Sinica,2010,47(2):216-222. |
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| Authors: | Yang Xuan Liang Yin Fang Jiqing Pan Xianzhang Mu Huan and Wang Baoliang |
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| Institution: | Institute of Soil Science, Chinese Academy of Sciences;Institute of Soil Science, Chinese Academy of Sciences;Experiment Station of Soil and Water Conservation;Institute of Soil Science, Chinese Academy of Sciences;Institute of Soil Science, Chinese Academy of Sciences;Institute of Soil Science, Chinese Academy of Sciences |
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| Abstract: | Based on analysis of the pluviometric data of 408 rainfall events in 8 years at Lanxi and Shengzhou Soil and Water Conservation Experiment Stations in Zhejiang Province, 3 factors, i.e. monthly erosive rainfall (Pmer), number of days of erosive rainfall in a month (Dmer), and maximum 3-day rainfall in a month (Z3m), were proposed, and a computation method defined, And both were introduced into the monthly rainfall erosivity models. The method of excluding low intensity rainfall, using of Pmer/Dmer to indire... |
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| Keywords: | Rainfall erosivity (R-factor) Daily rainfall Erosive rainfall Rainfall erosivity model Zhejiang Province |
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